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Question
section 7.2 homework
due monday by 11:59pm points 14 submitting an external tool
section 7.2 homework
score: 0/14 answered: 0/14
question 1
for a standard normal distribution, find:
p(z < -1.98)
express the probability as a decimal rounded to 4 decimal places.
Step1: Use z - table lookup
We use the standard normal distribution z - table. The z - table gives the cumulative probability $P(Z < z)$ for a standard normal random variable $Z$.
Step2: Find the value in the table
Looking up $z=-1.98$ in the standard normal distribution table. The table value for $z = - 1.98$ is $0.0239$.
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$0.0239$